Pyramidella (Triptychus) Mörch, 1875 Triptychus is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.

[2] The subulate shell is spirally paucilirate.

The aperture is lirate within, subsinuated in front.

[3] Species within the genus Triptychus include:[2]

This Pyramidellidae-related article is a stub.